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Expertise · Business tool

Your custom business tool, not a generic SaaS.

Custom ERP, back-office, internal management platform. When existing solutions (Excel, no-code, generic SaaS) no longer align with your operations.

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01 — Why us

Your processes,
not a SaaS’s.

Three principles that set a bespoke business tool apart from a generic product stretched to fit your operations.

01

An application for your actual processes, not the other way around

No forcing your business processes into a generic SaaS model. The code adapts to your rules: granular permissions, custom workflows, data referenced as it is in your industry.

02

Your data, your schema

Standard PostgreSQL, documented schema, full export possible at any time. No proprietary formats, no impossible migrations. Your data remains your asset.

03

Internal AI when it delivers value

Assistant on your data, document generation, automatic classification, RAG on internal documentation.

02 — Four formats

Four business tool formats,
one consistent method.

Four formats we design and deliver regularly. The scope may vary, but the method and maintainability standards remain the same.

More broadly, are you looking for a custom application? See applications.

01

Custom ERP

A comprehensive, modular platform that covers the core of your business when no off-the-shelf ERP aligns with your processes.

IS
02

Management back-office

The interface where your teams manage daily operations: inventory, invoicing, scheduling, orders, resources. With built-in business rules.

InventorySchedulingInvoicing
03

Operational dashboard

Real-time production, supply, and ops metrics, with actionable insights directly from the dashboard.

Actions
04

Field data capture tool

Tablets, complex forms, e-signature, photos, geolocation. Offline mode when required by the activity.

MobileOffline
03 — Tech stack

A robust stack
for your business tools.

We tailor our stack to the client context (sovereignty, GDPR, existing internal teams, SI integrations).

01

Front

Next.jsReactTypeScript
02

Back / Data

03

AI / Agents

04

Auth & RBAC

05

Mobile

React NativePWA offline
06

Integrations

RESTGraphQLn8nFile-based
07

Tests

VitestPlaywright
08

Ops / Hosting

OVHScalewaySelf-hostedDocker
09

Monitoring

SentryPostHog
10

CI / CD

GitHub ActionsVercel
All tooling choices are decided during scoping based on your context.
04 — Client case · Cindra

Creation of a custom business tool end-to-end.

Full digitisation of the fire equipment verification process. From quote creation to final verification PDF generation, including field planning.

Read the client case
Business tool · Equipment verification8 MONTHS · 60 USERS

Cindra

Complete business tool for fire equipment verification. From quotes to final verification PDF generation, with dedicated roles and teams.

60internal users with dedicated roles & teams
1tool for quotes, scheduling, field verification, final PDF
Next.jsSupabaseTypeScriptRBAC
05 — Method

A project in five stages

A dedicated team from scoping to delivery with a dedicated project lead

01Scoping1 to 3 weeks

Spec, plan, estimate.

Workshop, use case mapping, constraints (IT, GDPR, security), quantified success criteria. Deliverable: functional spec + technical plan + fixed estimate.

02Product design2 à 4 semaines

Validated user journeys.

Wireframes, user flows, design system, mockups. Full validation before any code is written.

03Iterative build2 à 6 mois

2-week sprints.

Demo at the end of each sprint. Your IT teams involved from sprint 1, pair programming available on request.

04Production deployment1 à 2 semaines

Secure switch.

Load testing, security audit, rollout plan, team training. No Go Live without measurable quality criteria.

05Run & evolutionContinu

Maintenance or handover.

Corrective maintenance, updates, gradual handover to internal teams if desired. Our goal isn’t to remain essential to your operations.

06 — Questions

Frequently asked questions

The questions we hear most often during scoping. If yours isn’t here, reach out!

When your business has rules too specific to fit a generic product, the total cost (SaaS + extensions + workarounds + technical debt) ends up exceeding a custom solution. We honestly assess both during scoping—even if it means recommending a SaaS remains the best fit.

Yes, this is a common starting point. Audit of the current system, reverse spec, gradual migration. See No-code to code migration for Bubble, Webflow, FlutterFlow—the method is the same: we map before rebuilding.

Yes, RBAC is integrated from the scoping phase. Roles, teams, permissions by module or field, audit logs. Managed via Supabase Auth or Auth0 depending on the existing SSO context.

Responsive web app by default, optimized for tablets. Native mobile app (React Native) or hybrid if field requirements demand it: offline mode, photos, scans, signatures, geolocation. Offline functionality is addressed during scoping, not as a last-minute add-on.

Yes, custom connectors, REST or GraphQL APIs, file-based integrations if the ERP is legacy. Synchronization plan defined during scoping.

Yes, on your own servers or private cloud. The Next.js + PostgreSQL stack can be deployed anywhere. For sensitive contexts (healthcare, defense, finance), we adapt the architecture—this is determined during scoping based on your required level of sovereignty.

Support contract (SLA, on-call, updates) or full handover to your IT team with training and documentation. No technical dependency. Standard PostgreSQL schema, TypeScript code in your Git, teams trained on the stack.
Start

Are you currently forcing your business into Excel or a generic SaaS?

Contact details
20 Rue des Taillandiers
75011 Paris
Response within 24 business hours.